23 May
2014
23 May
'14
1:56 a.m.
On Fri, May 23, 2014 at 03:31:42AM -0400, Blake McKeeby <blake.mckeeby@gmail.com> wrote a message of 10 lines which said:
Has anyone else seen this sort of selective response by Google? Do they maintain some sort of black list?
I would suggest it is probably more load balancing by hashing the source IP address then a black hole.